

package com.hazelcast.spi.impl.operationexecutor.impl;

import com.hazelcast.instance.impl.NodeExtension;
import com.hazelcast.internal.metrics.Probe;
import com.hazelcast.logging.ILogger;
import com.hazelcast.spi.impl.operationexecutor.OperationRunner;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;

import static com.hazelcast.internal.metrics.MetricDescriptorConstants.OPERATION_METRIC_PARTITION_OPERATION_THREAD_NORMAL_PENDING_COUNT;
import static com.hazelcast.internal.metrics.MetricDescriptorConstants.OPERATION_METRIC_PARTITION_OPERATION_THREAD_PRIORITY_PENDING_COUNT;

/**
 * An {@link OperationThread} that executes Operations for a particular partition,
 * e.g. a map.get operation.
 */
public class PartitionOperationThread extends OperationThread {

    OperationRunner[] partitionOperationRunners;

    @SuppressFBWarnings("EI_EXPOSE_REP")
    public PartitionOperationThread(String name, int threadId, OperationQueue queue, ILogger logger, NodeExtension nodeExtension, OperationRunner[] partitionOperationRunners, ClassLoader configClassLoader) {
        super(name, threadId, queue, logger, nodeExtension, false, configClassLoader);
        this.partitionOperationRunners = partitionOperationRunners;
    }

    /**
     * For each partition there is a {@link OperationRunner} instance. So we need
     * to find the right one based on the partition ID.
     */
    @Override
    public OperationRunner operationRunner(int partitionId) {
        return partitionOperationRunners[partitionId];
    }

    @Probe(name = OPERATION_METRIC_PARTITION_OPERATION_THREAD_PRIORITY_PENDING_COUNT)
    int priorityPendingCount() {
        return queue.prioritySize();
    }

    @Probe(name = OPERATION_METRIC_PARTITION_OPERATION_THREAD_NORMAL_PENDING_COUNT)
    int normalPendingCount() {
        return queue.normalSize();
    }
}
